CN1107174C - V-shape ribbed belting - Google Patents
V-shape ribbed belting Download PDFInfo
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- CN1107174C CN1107174C CN00103209A CN00103209A CN1107174C CN 1107174 C CN1107174 C CN 1107174C CN 00103209 A CN00103209 A CN 00103209A CN 00103209 A CN00103209 A CN 00103209A CN 1107174 C CN1107174 C CN 1107174C
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- driving belt
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- olefin elastomer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/20—V-belts, i.e. belts of tapered cross-section with a contact surface of special shape, e.g. toothed
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Abstract
A power transmission belt having a body with a length, an inside, an outside, and laterally spaced sides. The body has a bonding rubber layer in which elongate load carrying cords are embedded to extend lengthwise of the body. The body has a first layer on the inside of the bonding rubber layer in which a plurality of laterally spaced ribs are formed extending lengthwise of the body, and a second layer on the outside of the bonding rubber layer in which a plurality of laterally spaced ribs are formed extending lengthwise of the body. The bonding rubber layer has a sulfur-crosslinked rubber composition including an ethylene-alpha-olefin elastomer. At least one of the first and second layers has a crosslinking product that is an organic peroxide-crosslinked rubber composition including an ethylene-alpha-olefin elastomer.
Description
The present invention relates to driving belt, especially at the driving belt of the lateral separation rib that vertically has many extensions.
As everyone knows, in automobile, use vee-belt so that drive various accessories from engine crankshaft.Can several belts of single driving by bent axle.In a kind of engine structure that exemplifies, a synchronous generator of a belt drives and a typhoon machine, the belt drives servosteering unit of another separation, the 3rd belt drives cooling unit.
Existed and reduced vehicle weight and size so that reduce the trend of demanded fuel.In many such automobiles, use V-belt ribbed hide band, it has the main body of longitudinal extension, carrying cord and many mutual lateral separations and at the V-arrangement rib of the inside and outside longitudinal extension of belt body.Have one or the canvas of two-layer rubber impregnated in the inside and outside other parts of belt body.Can arrange this belt helically shaped so that match with a plurality of accessory pulley.This belt can be by the idle pulley tensioning, and this idle pulley presses the apleuria surface.This apleuria surface also is used to drive one or more annex.
In general, the apleuria surface does not have the power transmission capacity of ribbed surfaces.The wearing and tearing of apleuria or ribbed surfaces can cause belt tension to reduce, and this will cause and skid.When this phenomenon takes place when, this belt reliable transmission energy under heavy load.
In order to overcome this problem, knownly can use two V-belt ribbed hide band, the wherein ribs that many lateral separations and longitudinal extension arranged in the inboard and the outside of belt body.Particularly, with the rib shape in the outside identical rib spacing, rib height and rib shape are arranged partly in the belt inboard.Between the inside and outside rib of belt body, embed carrying cord.
Two V-belt ribbed hide bands generally use in the small automobile engine cabin.These motors can produce enough heats and therefore require belt to operate in hot environment in these less cabins.Known natural rubber, styrene butadiene rubber and the neoprene of can using under this environment is used for belt.Yet, use these belts of these rubber to be easy to too early be full of cracks.Particularly, be full of cracks appears in the compression moulding layer at belt that is in hardening state and rubber.
People study the heat resistance of improving neoprene.By making great efforts to have obtained some progress.Yet this improvement is restricted, and the performance of improved neoprene remains unconformable in many environment.
People also for example study to the rubber that uses thing as an alternative by chlorosulfonated polyethylene rubber, hydrogenated nitrile rubber or fluorine rubber.For the main framing in the rubber is high saturated or fully saturated, and these rubber just have excellent in heat resistance.In these rubber, known chlorosulfonated polyethylene can be equal to mutually with neoprene aspect dynamic fatigue, wearability and the oil resistance.Yet chlorosulfonated polyethylene is because sulfuration process, the influence of especially acid accepting agent and reduce water resistence.Especially for example MgO and PbO have been used as the acid accepting agent of chlorosulfonated polyethylene to oxygenant.
Yet, the acid accepting agent that has plumbous component when use, for example PbO and Pb
3O
4The time, when improving water resistence, pollution and hygienic issues owing to lead appear again.
When MgO was used as acid accepting agent, water resistence was by MgCl in the cross-linking reaction process
2Obviously degenerate.The rubber of gained is unsuitable for being used in the driving belt.
On the other hand, the composition that when the epoxy type acidity accepting agent beyond the use metallic oxide, can obtain having good water resistance, but the product odour of gained is abominable, therefore processes said composition and is out of favour.
Compare with the belt that uses neoprene by the driving belt of above-mentioned preparation and can obtain obvious improved belt service life and excellent in heat resistance under high temperature condition, these belts are under low temperature environment, for example-30 ℃ or lower, it may have unacceptable low life-span.This may be based on such fact, and promptly chlorosulfonated polyethylene rubber is formed by chlorosulfonated polyethylene and contains chlorine.The cohesive energy of chlorine causes the rubber sclerosis in low temperature rise.Cold gum lack flexibility and be easy to the be full of cracks.
The ethene-alpha-olefin elastomer, for example ethylene propylene rubber (EPR) and ethylene-propylene-diene rubber (EPDM) are the polymer with good heat resistance and winter hardiness.These elastomers are also quite cheap.Yet the low occasion of meeting that therefore is not used in usually of these elastomer oil resistances with oil phase.Because the V-belt ribbed hide band of dry friction is easy to skid when being exposed to significant quantity oily, so its transmission capacity reduces, thereby to make them be applied to this environment generally be unpractical.Yet, after deliberation in driving belt, use these elastomers, such as disclose in Japanese patent unexamined in 345948/1994 announcement.
Ethylene propylene rubber has quite low tearing resistance, can make its further reduction by using peroxide cross-linking agent.As a result, carrying cord is tending towards producing in running.In this rubber, use the Sulfur interconnected system also to be difficult to effectively improve sulfidity, cause in operating process and wear and tear significantly.Abrasion dust is tending towards accumulating in the base portion of rib, and can cause bonding wearing and tearing.This also may cause producing influential noise problem.And the EPDM that has a large amount of two keys in the use molecule can improve sulfidity and bonding polishing machine, thereby is tending towards reducing heat resistance.
On the one hand, the present invention relates to a kind of certain-length belt body that has, the driving belt of inboard, the outside and side, lateral separation.This belt body has the adhesive rubber layer, wherein embeds the carrying cord that extends so that extend the vertical of belt body.Belt body has at the first layer on the adhesive rubber layer inboard (wherein vertically forming many laterally spaced ribs along belt body) and the second layer on the adhesive rubber layer outside (wherein vertically forming many laterally spaced ribs along belt body).The adhesive rubber layer has the elastomeric Sulfur crosslinked rubber composition of the ethene-alpha-olefin of comprising.At least one of first layer and second layer have cross-linking products, and it is a kind of crosslinked rubber composition of the elastomeric organic peroxide of ethene-alpha-olefin that comprises.
On the other hand, first and second layers of cross-linking products that all has the rubber composition that comprises that the elastomeric organic peroxide of ethene-alpha-olefin is crosslinked.
On the other hand, in inboard, the outside, or the side, lateral separation of belt body does not all strengthen cloth.
Ethene-alpha-olefin elastomer in first and second layers can be one of ethylene-propylene-diene monomers (EPDM) and ethylene propylene rubber (EPR) at least.
This diene monomers can be dicyclopentadiene, methene norbornene, ethylidene norbornene, 1 at least, one of 4-hexadiene and cyclo-octadiene.
This organic peroxide can be dicumyl peroxide, di-t-butyl peroxide, peroxide tert-butyl cumyl, benzoyl peroxide, 1 at least, two (tert-butyl group-peroxidating isopropyl) benzene, 2 of 3-, 5-dimethyl-2,5-two (tert-butyl hydroperoxide) hexin-3,2,5-dimethyl-2,5 (benzoyl peroxidating) hexane and 2,5-dimethyl-2, single (tert-butyl hydroperoxide) hexane of 5-.
This organic peroxide can use separately or use with the scope of per 100 gram ethene-alpha-olefin elastomer 0.005-0.02 mole grams as mixture.
This belt may further include co-crosslinker, it is a kind of TIAC, TAC, 1 at least, the slaine of 2-polybutadiene, unsaturated carboxylic acid, oxime, guanidine, trimethylol-propane trimethacrylate, ethylene glycol dimethacrylate, N, N '--phenylene-bismaleimides and Sulfur.
This belt can further comprise a) strengthening agent, and it is a kind of carbon black and silica at least, b) filler its be a kind of calcium carbonate and talcum at least, c) plasticizing agent, d) stabilizer, e) processing aid, and f) colorant.
This belt can comprise short reinforcing fiber at the first layer and the second layer at least.
Many short reinforcing fibers can stretch out from laterally spaced belt body side.
This weak point reinforcing fiber can be nylon 6, nylon 66, polyester, cotton, aramide-fibre at least and have the aramide-fibre of aromatic kernel and with trade mark CONEX in structure of molecule
TM, NOMEX
TM, KEVLAR
TM, TECHNORA
TMAnd TWARON
TMOne of those aramide-fibres of selling.
In one form, this weak point reinforcing fiber has the length of 1-20mm.
The amount that this weak point reinforcing fiber exists is per 100 parts by weight of ethylene-alpha-olefin elastomer 1-30 weight portion.
In one form, at least one of first layer and second layer are fibre-reinforced rubber, therein ethylene-alpha-olefin elastomer and short fibre grafting bonding, the diameter of this short fibre is not higher than 1.0 μ m, and its amount is per 100 parts by weight of ethylene-alpha-olefin elastomer 1-50 weight portion.
In one form, the diameter of short fibre is 0.05-0.08 μ m, and its amount is per 100 parts by weight of ethylene-alpha-olefin elastomer 5-25 weight portion.
In one form, bonding tackiness agent grafting between short fibre and the ethene-alpha-olefin elastomer, this tackiness agent is that (it is a kind of vinyl three ('beta '-methoxy ethyoxyl) silane to a kind of a) silane coupler at least at least, VTES, and γ-methacrylic acid group oxygen base propyl group trimethoxy silane), b) titanate coupling agent (it is a kind of isopropyl three isostearoyl titanate esters at least) and unsaturated carboxylic acid (it is a kind of acrylic acid, methacrylic acid and maleic acid at least), and c) the phenolic varnish type phenolic resin.
Ethene-alpha-olefin elastomer in the bonded layer can be EPDM, and its iodine number is 4-40.
This bonding rubber layer can further comprise at least a a) strengthening agent, and it is a kind of carbon black and silica at least, b) filler, it is a kind of calcium carbonate and talcum at least, c) plasticizing agent, d) stabilizer, e) processing aid, and f) colorant.
This bonding rubber layer can further comprise many embeddings short fibre wherein.
Sulfur amount in the bonding rubber layer is per 100 parts by weight of ethylene-alpha-olefin elastomer 0.5-3.0 weight portion.
This carrying cord can have the fiber through resorcinol formaldehyde latex (RFL) solution-treated.
The fiber of this carrying cord can be with at least a epoxy and isocyanate compound pretreatment before handling with RFL.
An object of the present invention is to provide and a kind ofly have the driving belt of abundant running life at high temperature and low temperature environment, each rubber layer is subjected to identical pressure and tension force in the belt repeated deformation.
A further object of the invention provides a kind of belt with good water-fast and other ambient impurities.
Fig. 1 is the perspective cross-sectional view of two V-belt ribbed hide bands constructed in accordance.
Fig. 2 is according to of the present invention, and the front elevation of the V-belt ribbed hide band of arranging around belt pulley at interval also has a rotation emery wheel, and this emery wheel is pressed against on the belt, when its feed just at the side formation rib of driving belt,
Fig. 3 shows as one side of driving belt among Fig. 2 to form rib forms the emery wheel of rib afterwards at the driving belt opposite side amplification sectional view.
In Fig. 1,, be shown as 10 according to of the present invention pair of V-belt ribbed hide band.Belt 10 has belt body 12, and it has inboard 14, the outside 16 and laterally spaced side 18,20.
Belt body 12 comprises adhesive rubber layer 22, embeds carrying cord 24 within it.This carrying cord 24 lateral separation and at the direction longitudinal extension of double-headed arrow 26 within belt body 12.Carrying cord 24 is determined the medial axis of belt 10.
Inboard at adhesive rubber layer 22 forms inner rubber layer 28, forms outer rubber layer 30 in the outside of adhesive rubber layer 22 simultaneously.Inner rubber layer 28 has betwixt and to form, and at the V-arrangement of belt belt body 12 longitudinal extensions, lateral separation rib 32.Outer rubber layer 30 has betwixt and to form, and at the V-arrangement of belt belt body 12 longitudinal extensions, rib 34.
Shown rib 32,34 is of similar shape and spacing.Yet, do not need identical for the spacing of rib 32,34.In addition, the relative lateral attitude of rib 32,34 can from shown in position change.
According to bending direction, rib 32,34 or always be in compression or extended state, or when their back-flexings, compress and tension load between can replace.
Carrying cord 24 has high strength, low elongation.This carrying cord 24 can be by various fiber, for example polyester, aromatic copolyamide, and/or glass preparation.Carrying cord 24 is embedded in the adhesive rubber layer 22 fully.
Internal layer and outer layer rubber layer the 28, the 30th, elastomer layer.In a preferred form, the elastomer in the internal layer and outer 28,30 is the ethene-alpha-olefin elastomer, and they can be ethylene-propylene-diene monomer rubber (EPDM).This diene monomers can be at least a dicyclopentadiene, methene norbornene, ethylidene norbornene, 1,4-hexadiene and cyclo-octadiene.This elastomer also can be an ethylene propylene rubber (EPR).
For crosslinked above-mentioned rubber; use organic peroxide; their preferably at least a dicumyl peroxides, di-t-butyl peroxide, tert-butyl peroxide cumyl, benzoyl peroxide base, 1,3-pair-(tert-butyl group-peroxidating isopropyl) benzene, 2,5-dimethyl 2; 5-two (tert-butyl hydroperoxide) hexin-3; 2,5-dimethyl-2,5-(benzoyl peroxidating) hexane and 2; 5-dimethyl 2, single (tert-butyl hydroperoxide) hexane of 5-.This organic peroxide can use separately or use with the scope of per 100 gram ethene-alpha-olefin elastomer 0.005-0.02 mole grams as mixture.
Can improve the degree of cross linking to avoid making bonding wearing and tearing because of mixing co-crosslinker.This co-crosslinker can generally be used for peroxyde crosslinked crosslinking agent from those and select, comprise but do not limit, at least a TIAC, TAC, 1, the slaine of 2-polybutadiene, unsaturated carboxylic acid, oxime, guanidine, trimethylol-propane trimethacrylate, ethylene glycol dimethacrylate, N, N '--phenylene-bismaleimides and Sulfur.
Rubber composition in the internal layer and outer 28,30 also can comprise a) strengthening agent for example carbon black and/or silica, b) for example calcium carbonate and/or talcum of filler, c) plasticizing agent, d) stabilizer, e) processing aid, and/or f) colorant.
Short reinforcing fiber 36 can be embedded internal layer and outer 28,30.Fiber 36 horizontal expansions are to improve horizontal resistance to pressure.Preferably, fiber 36 with the side 18 of the belt pulley that matches engagement, thereby the 20 outstanding friction factor that reduced between belt pulley and the belt 10.In the belt running, just may reduce noise like this.
Short fibre 36 can be one of nylon 6, nylon 66, polyester, cotton and aromatic copolyamide at least.Consider that its intensity and excellent abrasive resistance aramide-fibre are preferred.
Aramide-fibre preferably has the length of 1-20mm and the amount of its existence is per 100 parts by weight of ethylene-alpha-olefin elastomer 1-30 weight portion.This aramide-fibre preferably has the polyamide of aromatic kernel in structure of molecule.The example of suitable aramide-fibre is commercial with CONEX
TM, NOMEX
TM, KEVLAR
TM, TECHNORA
TMAnd TWRON
TMThose fibers of selling.
If the amount that aramide-fibre exists is less than 1 weight portion, the rubber in the internal layer and outer 28,30 may will be tending towards being clamminess, and this will improve wearing and tearing.The amount that exists as fruit fiber 36 is higher than 30 weight portions, may just not appear at the even dispersion in the rubber layer 28,30.Yet 36 couples of the present invention of short fibre are not most important.Also can use the short fibre of producing by other material.
Internal layer and outer layer rubber layer 28,30 also can contain the rubber that small amount of short strengthens, and therein ethylene-alpha-olefin elastomer is with small amount of short 38 (its diameter is not higher than 1.0 μ m) grafting bonding.Preferably, length of staple is at the 0.05-0.8 mu m range.Fiber 38 preferred amounts are (per 100 parts by weight of ethylene-alpha-olefin elastomer) 1-50 weight portion, more preferably 5-25 weight portion.
Be lower than 1 weight portion as fruit fiber 38 amounts, then the wear resistance of rubber may be not enough.On the other hand, surpass 50 weight portions, thereby then the elongation percentage of rubber composition may reduce to reduce heat resistance and stiffness as the amount of fruit fiber 38.
In the small amount of short Reinforced Rubber, because the ethene-alpha-olefin elastomer in the base rubber in the ethene-alpha-olefin elastomer of preparation rubber and internal layer and outer 28,30 is identical or similar, this rubber and base rubber are bonding satisfactorily.Therefore, because of ethene-alpha-olefin elastomer and small amount of short 38 chemical bondings, even between rubber and base rubber that small amount of short strengthens, or in the small amount of short Reinforced Rubber, unlikely formation be full of cracks in internal layer and outer 28,30.Even when forming these be full of cracks really, they are expanded not too easily.
In the rubber that small amount of short strengthens, interface between small amount of short and the ethene-alpha-olefin elastomer engages by adhesive means, it is that a kind of a) silane coupler (is a kind of vinyl three ('beta '-methoxy ethyoxyl) silane at least at least, VTES, and γ-methacrylic acid group oxygen base propyl group trimethoxy silane), b) titanate coupling agent (being a kind of isopropyl three isostearoyl titanate esters at least) and unsaturated carboxylic acid (being a kind of acrylic acid, methacrylic acid and maleic acid at least), and c) the phenolic varnish type phenolic resin.
This rubber is by mediating and extrude ethene-alpha-olefin elastomer and small amount of short 38, and tackiness agent, for example coupling agent the temperature of this fiber 38 of fusion with on prepare.
This small amount of short Reinforced Rubber has continuous phase, and it comprises rubber composition, and wherein small amount of short 38 is disperseed subtly.This small amount of short 38 is with the rubber chemistry bonding or interact on its interface.This rubber composition is not easy to be full of cracks.If be full of cracks, this be full of cracks also is not easy to expansion.Belt with this preparation of compositions can have excellent in heat resistance, winter hardiness, stiffness, and wear resistance.
Adhesive rubber layer 22 is by the elastomeric rubber composition preparation of above-mentioned ethene-alpha-olefin, and said composition can be crosslinked by Sulfur.This can cause good heat resistance and with carrying cord 24 in polyester fibre, aramide-fibre and/or glass fibre excellent bonds.In addition, this rubber composition can with a) strengthening agent, for example carbon black and/or silica, b) filler, for example calcium carbonate and/or talcum c) plasticizing agent, d) stabilizer, e) processing aid, and/or f) colorant mixes.
If use EPDM for the ethene-alpha-olefin elastomer in adhesive rubber layer 22, it preferably has the iodine number of 4-40.If this value is less than 4, rubber composition may be not enough to prevent that by Sulfur crosslinked carrying cord 24 from producing.On the other hand, if iodine number surpasses 40, then the prevulcanization of this rubber composition is shortened, and is difficult to grasp.Also have, heat resistance can be reduced.
The rubber that small amount of short strengthens can join in the bonding rubber layer 22.
Sulfur amount in the bonding rubber layer 22 is preferably per 100 parts by weight of ethylene-alpha-olefin elastomer 0.5-3.0 weight portion.
This carrying cord 24 can be handled with the bonding of enhancing with the rubber of bonding rubber layer 22.This carrying cord 24 can be immersed in the resorcinol formaldehyde latex solution (RFL) and heat so that be formed uniformly bonded layer subsequently on its surface.This carrying cord 24 can be with a kind of epoxy and isocyanate compound pretreatment before using the RFL solution-treated.
The present invention is not limited to mix above-mentioned each component with special method, because they can mix with known other apparatus and method of one skilled in the art.For example this mixing can use banbury mixers or dispersion kneader to carry out.
The internal layer and outer 28,30 parts that preferably are exposed to the belt 10 of common operation belt pulley do not strengthen cloth or net, because this may change the energy drive characteristic of belt 10.Yet when preferably not having cloth or net, the certain expection of the present invention can be exposed to the belt pulley mate in internal layer and outer 28,30 one or both of and use cloth or net to reduce the forming possibility of be full of cracks and expansion and to prevent the wearing and tearing of adhering on rib 32,34.
Though do not show, yet can provide selectable groove to improve the flexibility of belt along belt width in the known mode of one skilled in the art.
This pair V-belt ribbed hide band 10 can be according to the following technology preparation described in the Japan Patent 2762238.Use the elastomeric rubber layer 28 of ethene-alpha-olefin to have and by the crosslinked composition of organic peroxide it to be wrapped on the outer surface of cylindrical assembly drum.Apply bonding rubber layer 22 then, its rubber composition uses the ethene-alpha-olefin elastomer, and also available Sulfur is crosslinked.Then carrying cord 24 is spirally wound on the bonding rubber layer 22.Rubber layer 30 uses the ethene-alpha-olefin elastomer, and it has and can this rubber layer be applied on the carrying cord 24 by the crosslinked composition of organic peroxide.With the crosslinked production of the lamination of gained cover 40 as shown in Figures 2 and 3.
To overlap 40 and move on drive roller 42 and the passive roll 44, they can be respectively around 46,48 rotations that parallel to the axis.Cover 40 is placed under the predetermined tension and around the direction of roller 42,44 by arrow 50 and is driven.The emery wheel 52 that rotates by arrow 53 directions is pressed against the outer surface that rotating sleeve 40 exposes, and forms the groove 54 between rib 34 and the adjacent rib 34.
To overlap then 40 from roller 42,44 separate and upset outwards inboard.Have and alternately protrude 58 and recessed 60 chuck 56 and rib tooth 34 and groove 54 complementations, place it on the roller 42.Move on roller 44 and the chuck 56 for the outside belt sleeve 40 in inboard overturning and to cause rib 34 nested in groove 60.To overlap 40 places under the predetermined tension.As shown in Figure 3, emery wheel 52 is pressed against and forms rib 32 and groove 62 therebetween on the cover 40.When carrying out this forming step cover 40 by before the direction of arrow 50 so that emery wheel 52 direction of pressing arrow 53 rotate.According to routine, form 3-100 groove 54,62 synchronously by emery wheel 52.
On then the cover 40 of gained being taken off and move to driving and passive roll (not shown) on the separation component from roller 44 and chuck 56,, be cut into certain width to produce single two V-belt ribbed hide bands 10 with the cutting knife (not shown) according to routine.
Below, the performance of the belt of the special belt of many creative structures and conventional structure is compared.
Belt sleeve of the present invention uses the tension force rubber layer with 3mm thickness, the bonding rubber layer of 0.5mm thickness and the preparation of the compression rubber layer of 3mm thickness.Each layer passes through the stack moulding by the rubber composition shown in the following table 1.
Table 1 (weight portion)
(1) (7) 1,3-pairs-(tert-butyl hydroperoxide isopropyl) benzene of tetramethylthiuram disulfide (TDM) (5) tellurium diethyl dithiocarbamate (2) four sulfuration two (pentamethylene) thiuram (DPTT) (6) dicumyl peroxide (40%) (3) N-cyclohexyl 2-[4-morpholinodithio sulfenamides (CBS)
| Top/bottom portion rib | The bonding rubber layer | |||||
| Compound | R1 | R2 | R3 | C1 | C2 | C3 |
| EPDM Mitsul 4045 nylon cutting long filament aromatic polyamides cutting long filament stearic acid zinc oxide HAF carbon black paraffin oil hydration silica vulcanization accelerator (1) vulcanization accelerator (2) vulcanization accelerator (3) vulcanization accelerator (4) vulcanization accelerator (5) Sulfur peroxide (6) peroxide (7) co-crosslinker (8) | 100 10 10 1.5 5 55 15 - - - - - - - 8 - 2 | 100 10 10 1.5 5 55 15 - - - - - - - - 2 2 | 100 10 10 1.5 5 55 15 - 1 0.5 1 - - 1 - - - | 100 - - 0.5 5 40 15 15 - - - - - - 8 - 2 | 100 - - 0.5 5 40 15 15 1 0.5 1 - - 1 - - - | 100 - - 0.5 5 40 15 15 - 0.6 - 0.5 2 0.8 - - - |
(＞98%) (4) tetramethylthiuram monosulfides (8) N, N '--the phenylene bismaleimides
This rubber composition is mediated in banbury mixers.Carrying cord is prepared by polyester fibre.The short reinforcing fiber of horizontal expansion is embedded compression and tension force rubber layer.
Cover moved on drive roller and the passive roll and with predetermined tension move.This belt of advancing is rotated abrasion wheel grinding and forms rib, and the groove between the adjacent rib.This emery wheel is to rotate with 1800rpm with the direction of the direction of rotation of overlapping.
After one side forms rib and groove, will overlap upset.Cylindrical chuck has complementary rib and groove, places it on the drive roller.The cylindrical chuck inside of applying mechanically that to overturn then connects and tensioning.Drive this cover then and obtain second jacket rib and groove with moving runner grinding and polishing.
Unload the cover of such formation from drive roller and passive roll, move on the cutting roller of separation, be cut into single pair of V-belt ribbed hide band, every has 3 ribs.
According to the RMA standard, the V-belt ribbed hide band of gained is the K-type, three rib bands, and length is 975mm.Top/bottom portion rib spacing is 3.56mm.The rib height is 2.0mm.Thickness of belt is 6.3mm.The angle of last rib and end rib is 40 °.
The belt of gained is stood a) peeling test between the carrying cord and bonding rubber layer, b) heat-resisting running test, and c) in the room temperature-operating test to there being or not having the evaluation of adhesive wear.The results are shown in following table 2 and 3.
Table 2
| Example 1 | Example 2 | Example 3 | Comparative Examples 1 | Comparative Examples 2 | ||||||
| The bonding rubber layer | The C2 Sulfur | The C3 Sulfur | The C2 Sulfur | The C1 superoxide | The C2 Sulfur | |||||
| Compression rubber layer | The R1 superoxide | The R1 superoxide | The R2 superoxide | The R1 superoxide | The R3 Sulfur | |||||
| Atmospheric temperature (℃) | 23 | 120 | 23 | 120 | 23 | 120 | 23 | 120 | 23 | 120 |
| Adhesion force (N) (two kinds load-carrying unit between peeling strength) | 46.5 | 13.9 | 44.8 | 12.4 | 45.5 | 12.5 | 24.8 | 4.2 | 52.2 | 15.5 |
Table 3
| Example 1 | Example 2 | Example 3 | Comparative Examples 1 | Comparative Examples 2 | |
| The bonding rubber layer | The C2 Sulfur | The C3 Sulfur | The C2 Sulfur | The C1 superoxide | The C2 Sulfur |
| Last rib/end rib | The R1 superoxide | The R1 superoxide | The R1 superoxide | The R1 superoxide | The R3 Sulfur |
| Pop after the operation in 100 hours | Do not have | Do not have | Do not have | Pop 50mm after 24 hours | Do not have |
| Adhesive wear | Do not have | Do not have | Do not have | Do not have | Observe |
In peeling test, use strograph T to peel off in the atmospheric temperature of 23 ℃ and 120 ℃ with the speed of 50mm/min two carrying cords.
For running test, use driving wheel, the driven wheel of 120mm diameter, the system of the Idle wheel of the idle pulley of 70mm diameter and 45mm diameter with 120mm diameter.This belt is moved on the belt pulley of pilot system and 120 ℃ atmospheric temperature operation.Driving wheel is operated with 4900rpm, bears the load of 12HP on driven wheel, initially applies the tension force of 57kgf on Idle wheel.This idle pulley is engaged at the back side of belt, and winding angle is 90 degree.
Measurement is until the time that be full of cracks forms occurring.Compare resistance to heat with running test.
In the room temperature-operating process of the test,, use driving wheel, the pilot system of the Idle wheel of the driven wheel of 120mm diameter and 45mm diameter with 120mm diameter to having or not having in the evaluation of adhesive wear.Move belt to wheel and go up and drive it, driving wheel rotates at 4900rpm.Idle wheel is applied the initial tension of 85kgf.
As finding as a result from table 2 and 3, belt of the present invention is for internal layer and outer rubber composition with band ethylene propylene rubber, it can be crosslinked with organic peroxide, the rubber composition of this ethylene propylene rubber can be crosslinked with Sulfur for the bonding rubber layer, and a) the better adhesiveness between the carrying cord and bonding rubber layer arranged, b) improved belt life, and c) lower with respect to Comparative Examples belt adhesive wear at high temperature.
More than the particular embodiment of Jie Shiing is to be used for illustrating fully understanding broad notion of the present invention.
Claims (23)
1. V-belt rib driving belt comprises:
Have the certain-length belt body, the driving belt of inboard, the outside and side, lateral separation,
This belt body has the adhesive rubber layer, wherein embeds the carrying cord that extends so that extend the vertical of belt body,
This belt body further is included in the first layer on the adhesive rubber layer inboard, wherein vertically forms many laterally spaced ribs along belt body,
This belt body further is included in the second layer on the adhesive rubber layer outside, wherein vertically forms many laterally spaced ribs along belt body,
Wherein the adhesive rubber layer comprises and contains the elastomeric Sulfur crosslinked rubber composition of ethene-alpha-olefin,
Wherein one of first layer and second layer contain cross-linking products at least, and it contains organic peroxide-crosslinked rubber composition, and it contains the ethene-alpha-olefin elastomer.
2. according to the driving belt of claim 1, wherein first and second layers all contain cross-linking products, and it comprises the rubber composition of organic peroxide crosslinking, and said composition comprises the ethene-alpha-olefin elastomer.
3. according to the driving belt of claim 2, wherein survey face and all do not strengthen cloth in the lateral separation of arbitrary inboard, the outside or belt body.
4. according to the driving belt of claim 2, wherein the ethene-alpha-olefin elastomer in first and second layers comprises one of ethylene-propylene-diene monomers (EPDM) and ethylene propylene rubber (EPR) at least.
5. according to the driving belt of claim 4, wherein diene monomers contains dicyclopentadiene, methene norbornene, ethylidene norbornene, 1 at least, one of 4-hexadiene and cyclo-octadiene.
6. according to the driving belt of claim 2, wherein organic peroxide contains dicumyl peroxide, di-t-butyl peroxide, peroxide tert-butyl cumyl, benzoyl peroxide, 1 at least, two (tert-butyl group-peroxidating isopropyl) benzene, 2 of 3-, 5-dimethyl-2,5-two (tert-butyl hydroperoxide) hexin-3 and 2,5-dimethyl-2,5 (benzoyl peroxidating) hexane, with 2,5-dimethyl-2, one or more of single (tert-butyl hydroperoxide) hexane of 5-.
7. according to the driving belt of claim 6, wherein organic peroxide can or a) use separately or b) use with the scopes of per 100 gram ethene-alpha-olefin elastomer 0.005-0.02 moles grams as mixture.
8. according to the driving belt of claim 2, further comprise co-crosslinker, it contains at least a TLAC, TAC, 1, the slaine of 2-polybutadiene, unsaturated carboxylic acid, oxime, guanidine, trimethylol-propane trimethacrylate, ethylene glycol dimethacrylate, N, N '--phenylene-bismaleimides and Sulfur.
9. according to the driving belt of claim 2, further comprise at least a a) strengthening agent, it contains at least a carbon black and silica, b) filler, it is a kind of calcium carbonate and talcum at least, c) plasticizing agent, d) stabilizer, e) processing aid, and f) colorant.
10. according to the driving belt of claim 2, further containing many short reinforcing fibers in one of first layer and second layer at least.
11. according to the driving belt of claim 10, wherein the short reinforcing fiber in many short reinforcing fibers stretches out from side, belt body lateral separation.
12. according to the driving belt of claim 10, its short-and-medium reinforcing fiber contains at least a nylon 6, nylon 66, polyester, cotton, aromatic copolyamide and has the aromatic copolyamide of aromatic kernel and with trade mark CONEX in structure of molecule
TM, NOMEX
TM, KEVLAR
TM, TECHNORA
TMAnd TWARON
TMOne of those aramide-fibres of selling.
13. according to the driving belt of claim 12, its short-and-medium reinforcing fiber has the length of 1-20mm.
14. according to the driving belt of claim 13, the amount that its short-and-medium reinforcing fiber exists is per 100 parts by weight of ethylene-alpha-olefin elastomer 1-30 weight portion.
15. driving belt according to claim 2, wherein one of first layer and second layer contain fibre-reinforced rubber at least, therein ethylene-alpha-olefin elastomer and short fibre grafting bonding, the diameter of this short fibre is not higher than 1.0 μ m, and its amount is per 100 parts by weight of ethylene-alpha-olefin elastomer 1-50 weight portion.
16. according to the driving belt of claim 15, the diameter of its middle short fiber is 0.05-0.8 μ m, its amount is per 100 parts by weight of ethylene-alpha-olefin elastomer 5-25 weight portion.
17. driving belt according to claim 15, interface tackiness agent grafting between its middle short fiber and the ethene-alpha-olefin elastomer, this tackiness agent contains at least a a) silane coupler, it contains at least a vinyl three ('beta '-methoxy ethyoxyl) silane, VTES, and γ-methacrylic acid group oxygen base propyl group trimethoxy silane, b) titanate coupling agent, it contains at least a isopropyl three isostearoyl titanate esters and unsaturated carboxylic acids, it contains at least a acrylic acid, methacrylic acid and maleic acid, and c) the phenolic varnish type phenolic resin.
18. according to the driving belt of claim 1, wherein the ethene-alpha-olefin elastomer in the bonding rubber layer contains EPDM, its iodine number is 4-40.
19. according to the driving belt of claim 1, wherein the bonding rubber layer further comprises at least a a) strengthening agent, it contains at least a carbon black and silica, b) filler, it contains at least a calcium carbonate and talcum, c) plasticizing agent, d) stabilizer, e) processing aid, and f) colorant.
20. according to the driving belt of claim 1, wherein the bonding rubber layer further comprises many embeddings short fibre wherein.
21. according to the driving belt of claim 1, wherein the Sulfur amount in the bonding rubber layer is per 100 parts by weight of ethylene-alpha-olefin elastomer 0.5-3.0 weight portion.
22. according to the driving belt of claim 1, wherein carrying cord contains the fiber through resorcinol-formaldehyde latex (RFL) solution-treated.
23. according to the driving belt of claim 22, wherein the fiber of carrying cord before handling with RFL with at least a epoxy and isocyanate compound pretreatment.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1509299 | 1999-01-25 | ||
| JP15092/1999 | 1999-01-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1264799A CN1264799A (en) | 2000-08-30 |
| CN1107174C true CN1107174C (en) | 2003-04-30 |
Family
ID=11879212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00103209A Expired - Fee Related CN1107174C (en) | 1999-01-25 | 2000-01-24 | V-shape ribbed belting |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1107174C (en) |
| DE (1) | DE10003972B4 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4745789B2 (en) * | 2004-12-27 | 2011-08-10 | 三ツ星ベルト株式会社 | V-ribbed belt and method for manufacturing V-ribbed belt |
| JP2008044791A (en) * | 2006-08-11 | 2008-02-28 | Inventio Ag | Elevator support means of elevator system, elevator system having the elevator support means, and method of assembling the elevator system |
| DE102008004112A1 (en) * | 2008-01-11 | 2009-07-16 | Saertex Gmbh & Co. Kg | Semifinished textile product with at least one surface provided with an adhesive |
| US20160002383A1 (en) * | 2013-03-26 | 2016-01-07 | Akzo Nobel Chemicals International B.V. | Process for Crosslinking EPM and EPDM |
| CN104151657B (en) * | 2014-07-22 | 2016-04-13 | 河南省金久龙实业有限公司 | A kind of trimming formula two-sided transmission profile of tooth grouped belt |
| JP6740174B2 (en) * | 2016-05-23 | 2020-08-12 | 三ツ星ベルト株式会社 | Transmission belt |
| WO2017204207A1 (en) | 2016-05-23 | 2017-11-30 | 三ツ星ベルト株式会社 | Transmission belt |
| CN106402272A (en) * | 2016-11-21 | 2017-02-15 | 无锡市中惠橡胶科技有限公司 | Flat belt and production process thereof |
| CN109335475B (en) * | 2018-07-25 | 2020-08-14 | 宁波伏龙同步带有限公司 | High-temperature-resistant cold-resistant synchronous belt |
| CN109625774A (en) * | 2018-12-24 | 2019-04-16 | 阿雷法(苏州)汽车部件有限公司 | A kind of multiple-grooved limit V band |
| JP7387664B2 (en) * | 2021-03-05 | 2023-11-28 | バンドー化学株式会社 | V-ribbed belt |
| CN116041867B (en) * | 2023-02-22 | 2024-08-02 | 三维控股集团股份有限公司 | Special high temperature resistant rim strip of chemical fertilizer granulation jar |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0590423A2 (en) * | 1992-10-02 | 1994-04-06 | Bando Chemical Industries, Limited | Process for producing vulcanized rubber composition |
| JPH06345948A (en) * | 1993-04-15 | 1994-12-20 | Toray Ind Inc | Molding resin, its production and material for connector having hinge part |
| JPH09500930A (en) * | 1994-10-31 | 1997-01-28 | ザ ゲイツ ラバー カンパニー | Ethylene-alpha-olefin belting |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6613608A (en) * | 1965-09-29 | 1967-03-30 | ||
| US5710218A (en) * | 1989-10-05 | 1998-01-20 | Mitsui Petrochemical Industries | Ethylene-propylene-diene rubber, elastomer composition and vulcanized rubber thereof |
| DE4234149B4 (en) * | 1991-10-09 | 2004-07-08 | Mitsuboshi Belting Ltd., Kobe | Timing belts containing coated cables with increased durability |
| US5610217A (en) * | 1994-10-31 | 1997-03-11 | The Gates Corporation | Ethylene-alpha-olefin belting |
| CN1109830C (en) * | 1997-10-31 | 2003-05-28 | 三星皮带株式会社 | Power transmission belt |
-
2000
- 2000-01-24 CN CN00103209A patent/CN1107174C/en not_active Expired - Fee Related
- 2000-01-25 DE DE2000103972 patent/DE10003972B4/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0590423A2 (en) * | 1992-10-02 | 1994-04-06 | Bando Chemical Industries, Limited | Process for producing vulcanized rubber composition |
| JPH06345948A (en) * | 1993-04-15 | 1994-12-20 | Toray Ind Inc | Molding resin, its production and material for connector having hinge part |
| JPH09500930A (en) * | 1994-10-31 | 1997-01-28 | ザ ゲイツ ラバー カンパニー | Ethylene-alpha-olefin belting |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10003972B4 (en) | 2008-11-13 |
| CN1264799A (en) | 2000-08-30 |
| DE10003972A1 (en) | 2000-07-27 |
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